20180474213 has 2 divisors, whose sum is σ = 20180474214. Its totient is φ = 20180474212.

The previous prime is 20180474207. The next prime is 20180474227. The reversal of 20180474213 is 31247408102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10164067489 + 10016406724 = 100817^2 + 100082^2 .

It is a cyclic number.

It is not a de Polignac number, because 20180474213 - 2¹⁰ = 20180473189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20180474213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20180474233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10090237106 + 10090237107.

It is an arithmetic number, because the mean of its divisors is an integer number (10090237107).

Almost surely, 2^20180474213 is an apocalyptic number.

It is an amenable number.

20180474213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20180474213 is an equidigital number, since it uses as much as digits as its factorization.

20180474213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 20180474213 in words is "twenty billion, one hundred eighty million, four hundred seventy-four thousand, two hundred thirteen".